Conveyer.



Patented July I5, |902.

R. S. HILL.

BUNVEYER.

(Application led Mar. 24., 1902.)

(N u Model.)

@noautofo UNTTED STATES `PATENT GEEICE.

ROBERT S. HILL, OF DETROIT, MICHIGAN.

CONVEYER.

SPECIFICATION forming' part Of Letters Patent N 0. 704,540, dated. July 15, 1902.

Application filed March 24, 1902. Serial No. 99,711. (No model.)

To all whom, it may concern:

Be it known that I, ROBERT S. HILL, a citizen of the United States, residing at No. 68 Pleasant avenue, Detroit,inthe county of Vayne and State of Michigan, have invented certain new and useful Improvements in Conveyers and I do hereby declare the following to bc a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the ngures of reference marked thereon, which form a part of this specification.

This invention relates to conveyers, and

particularly to reciprocating conveyers.

It comprises, essentially, a trough in which the coal or other matter to be conveyed is ad- Vanced by means ofa number of swinging and sliding nights. The nights are so connected and operated as to lift at the beginning of the backward slide and pass back over the matter in the trough. A

An embodiment of the invention is hereinafter described, and is illustrated in the accompanying drawings, inwhich-A Figure lis a top plan View. Fig. 2 is a longitudinal vertical section with the nights atV or near the end of the forward stroke. Fig. 3 is a similar section with the flights at the beginning of the backward stroke, and Fig. e is a cross-section.

Referring specifically to the drawings, the trough-noor is indicated at G and has near the rear end thereof a discharge-opening 6?, and an opening 6b, in which work the crank and connecting-rod. The sides 7 of the trough are provided at the top thereof with inwardlyprojecting guides, on which reciprocate the sliding blocks 8. These blocks are preferably formed in the manner shown in the drawings with grooves in which are embraced the guides and are connected by spacing-bars 8f. The blocks receive `and support the ends of `bars 9, which span the trough and to which the nights 10 are hung by hinges 10a. The connecting-bars 8"L cause the nights to slide in unison. To cause the nights to swing in unison, a bar 12 is employed, which is hinged, as at 13, to arms 11, bolted to each night. This bar is preferably located above the pivotal points of the nights, as shown in the draw- `at,15,;to the foremost night.

*leaves the trough clear;

The flights are operated from a revolving shaftl?, driven in any,l proper manner by a crank 16 and a connecting-rodl-l, pivoted, as

The shaft extends through a suitable bearing 18, andthe crank and connecting-rod work through the opening 6b, as above stated.

It will be seen that the nights are caused yLo swing and also to slide in thetrough. On

the forward stroke they are throwndown by the pull of the crank'on the foremost night, the movement of which is communicated to the other nights by therod 12. This action takes place at or before the beginning of the forward slide. When they reach the perpendicular and meet the resistance of the matter in the trough, they slidel forwardthe length of the stroke producedby the crank.

On the backward movement it is essential that the nights nrstliftfclear before they begin to :slide 'back toward the' head of the trough. This action will ordinarily take place by the motion of the crank, the force required to turn the nights on theirpivots being normally less than that required to'slide them; but to insure such action I provide a retaining-spring 8b, which comprises a flat piece 0f metal attached to the top of the trough` and so formed and located that it will yieldingly engage the block 8 at the endoftheA forward stroke. An upturned lip Scisforined at the `front of the spring, against,Whichtheiblock 8 strikes, causing the spring to lift or open to receive the block thereunder, where itisheld with a tension sunicient to insure-,the lifting ,of the `nights before they begin to slideback- ICO What I claim is-` to swing and slide, and a spring lengaging a l. In a; conveyer in Combination, a trough, block and yieldingiy holding the same against i guides thereon, sliding` blocks embracing the the sliding movement. guides, flights swingingly hung from the In testimony whereof I aiix my signature 5 bltzks, connecting-bars between the flights, in presence of two witnesses.

an means to reciprocate the flights. n

2. In a conveyor, in combination, atrough, ROBET S HILL' guide-bars thereon, sliding blocks on the Witnesses: guide-bars,conneoted nights swingingly hung CLAUDE B. PEARY, 1o from the blocks, means to cause the flights FRANK L. SCHIEMANN. 

